module.cc revision 12982:c7966254372e 
1/*
2 * Copyright 2018 Google, Inc.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met: redistributions of source code must retain the above copyright
7 * notice, this list of conditions and the following disclaimer;
8 * redistributions in binary form must reproduce the above copyright
9 * notice, this list of conditions and the following disclaimer in the
10 * documentation and/or other materials provided with the distribution;
11 * neither the name of the copyright holders nor the names of its
12 * contributors may be used to endorse or promote products derived from
13 * this software without specific prior written permission.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 *
27 * Authors: Gabe Black
28 */
29
30#include "systemc/core/module.hh"
31
32#include <cassert>
33#include <list>
34
35#include "base/logging.hh"
36
37namespace sc_gem5
38{
39
40namespace
41{
42
43std::list<Module *> _modules;
44Module *_new_module;
45
46} // anonymous namespace
47
48Module::Module(const char *name) : _name(name), _sc_mod(nullptr), _obj(nullptr)
49{
50    panic_if(_new_module, "Previous module not finished.\n");
51    _new_module = this;
52}
53
54Module::~Module() { allModules.erase(this); }
55
56void
57Module::finish(Object *this_obj)
58{
59    assert(!_obj);
60    _obj = this_obj;
61    _modules.push_back(this);
62    _new_module = nullptr;
63    // This is called from the constructor of this_obj, so it can't use
64    // dynamic cast.
65    sc_mod(static_cast<::sc_core::sc_module *>(this_obj->sc_obj()));
66    allModules.insert(this);
67}
68
69void
70Module::pop()
71{
72    panic_if(!_modules.size(), "Popping from empty module list.\n");
73    panic_if(_modules.back() != this,
74            "Popping module which isn't at the end of the module list.\n");
75    panic_if(_new_module, "Pop with unfinished module.\n");
76    _modules.pop_back();
77}
78
79Module *
80currentModule()
81{
82    if (_modules.empty())
83        return nullptr;
84    return _modules.back();
85}
86
87Module *
88newModule()
89{
90    return _new_module;
91}
92
93std::set<Module *> allModules;
94
95} // namespace sc_gem5
96